User manual

Clear-Com Intercom Systems KB-212 Speaker Station

Rev. B

Introduction

Congratulations and thank you for choosing this Clear-Com product.

The KB-212 Speaker Station is a powerful, yet user-friendly unit that can

serve as a versatile intercom station.

Please read this manual completely to better understand the functions of

these products. For questions not addressed in this manual, contact the

dealer or Clear-Com directly. Clear-Com applications support and service

people are ready to help.

Description

The Clear-Com PL-Pro™ KB-212 speaker station is designed for use in

theatres, live performances, industrial environments, and small television

facilities. It features speech intelligibility, even in high noise levels, and can be

customized through its programmable options.

Local or remotely controlled talking or listening is selectable and allows either

hands-on or hands-free operation. The talk button operates in momentary

mode. The integral microphone and speaker offer half-duplex communication.

The KB-212 offers both visual and audible call signaling to attract the

attention of operators.

A balanced program input allows the monitoring of external audio through the

speaker. This program input can also be used as a paging function.

The integral speaker’s volume level can be adjusted using a front-panel knob.

An internal control allows setting a minimum speaker level. An automatic

speaker switching circuit will quiet the speaker when the talk button is

activated.

The KB-212 receives 30-VDC power from the Clear-Com intercom line. The

unit mounts either in a standard four-gang electrical outlet box or in an

optional Clear-Com V-Box. The extra-thick front panel and compact, surface-

mount circuitry results in a reduced size and lighter weight package that

maintains Clear-Com ruggedness. The intercom channel connects to a plug-

on screw terminal strip. Male and female three-pin XLR connectors are

provided on the optional V-Box to offer a through connection to the intercom

channel.

Although the optional EB-4W daughter board module allows this unit to

function on a TW line, the unit’s operation will remain single channel. Also, the

EB-4W 4-Wire daughter board module is available to allow long-distance

connections using separate pairs of wires for send audio and receive audio.

The KB-212 is compatible with all Clear-Com Party-Line intercoms.